1、critical
极重要的;关键的
The incident happened at a critical point in the campaign.
该事件发生在竞选活动的关键时期。
Environmentalists say a critical factor in the city's pollution is its population.
环境保护主义者说造成该城市污染问题的一个关键因素是其人口数量。
(局势)严重的,有危险的
The German authorities are considering an airlift if the situation becomes critical.
如果局势变得危急,德国当局将考虑实施空运。
Its day-to-day finances are in a critical state.
其日常财务状况十分糟糕。
批评的;挑剔的
His report is highly critical of the trial judge.
他在报告中对主审法官有颇多批评。
a few dozen intellectuals who've been critical of the regime.
几十名一直批判该政权的知识分子
2、turn off
驶离,离开(…路);转弯;拐入旁路
The truck turned off the main road along the gravelly track which led to the farm.
卡车驶离大路,沿着通向农场的碎石小道行进。
He turned off only to find he was trapped in a town square with no easy exit.
他转入岔路,却发现自己困在了一个难觅出口的市镇广场。
关上;关掉;截断,切断(…的供应)
The light's a bit too harsh. You can turn it off.
灯光有点太刺眼了。你可以把灯关掉。
I have to get up and turn off the radio.
我必须起床关上收音机。
使丧失兴趣
What turns teenagers off science and technology?
是什么使青少年对科学技术丧失了兴趣?
Teaching off a blackboard is boring, and undoubtedly turns people off.
照本宣科枯燥乏味,无疑会使人们丧失学习兴趣。